Why Deposit Size Matters for Your Doncaster Home Loan

Your deposit directly determines which loan products you can access and whether you will pay Lenders Mortgage Insurance.

Doncaster sits in the City of Manningham, where established family homes are well represented and buyer competition remains consistent. The deposit you bring shapes how lenders assess your application, the rate you may secure, and the upfront costs you face before settlement.

What Deposit Do Lenders Require in Doncaster

Most lenders require a minimum deposit of 5% of the property value, with 20% being the threshold at which LMI is no longer charged. If you are purchasing with a deposit below 20%, the lender will assess whether the loan meets their serviceability requirements at an interest rate at least 3.0 percentage points above the actual loan product rate. This buffer applies to all new borrowers and is set by APRA.

Consider a buyer purchasing an established home in Doncaster East, contributing a 10% deposit. The lender will require proof that the deposit funds have been held in genuine savings for at least three months, or have come from acceptable non-savings sources such as a gift from a parent or proceeds from a recent sale. The loan amount will be assessed at the buffered rate to confirm that repayments remain affordable even if rates rise. Because the deposit is below 20%, the lender will also require LMI, which is calculated on a sliding scale based on the loan amount and the LVR. The premium is added to the loan or paid upfront, and in Victoria, no stamp duty is charged on the LMI premium itself.

Why 20% Is the Point Where Costs Drop

Reaching a 20% deposit removes the requirement for LMI and typically opens access to slightly lower rates. LMI protects the lender if the borrower defaults and the property is sold for less than the outstanding loan balance. It does not protect the borrower. The premium is calculated by the insurer and varies depending on the LVR and loan amount. For a loan with a 10% deposit, the premium may be several thousand dollars. For a loan with a 15% deposit, the premium is lower. At 20%, the premium disappears entirely.

Some lenders also reserve their most competitive home loan rates for borrowers at 80% LVR or below. The difference may be modest, but over the life of a loan it compounds. In our experience, buyers who have the option to delay settlement by a few months to reach 20% often benefit from the combination of no LMI and a slightly lower rate, particularly when they are refinancing out of a current loan with a higher balance.

How Government Schemes Reduce the Deposit Barrier

The Australian Government 5% Deposit Scheme allows eligible first home buyers to purchase with a deposit of as little as 5% without paying LMI. Housing Australia provides a guarantee to the participating lender of up to 15% of the property value, which brings the combined deposit and guarantee to 20%. No income caps apply, and no annual place limits apply. Applications are made through a panel of participating lenders.

In Victoria, the property price cap for the scheme is $950,000 for capital cities and regional centres, which includes Doncaster and surrounding suburbs in the City of Manningham. Both the purchase price and the lender's assessed value of the home must be at or below that cap. The scheme covers established homes, new builds, and vacant land, and can be used alongside the Victorian first home buyer stamp duty concession, which provides a full exemption on properties valued up to $600,000 and a sliding scale concession on properties valued from $600,001 to $750,000. The scheme cannot be combined with Help to Buy.

What Counts as Genuine Savings

Lenders define genuine savings as funds that have been held in your account for at least three months and have accumulated through regular deposits or retained balances. Savings held in a transaction account, savings account, term deposit, or offset account typically qualify. Funds received as a one-off payment shortly before application, such as a tax refund or bonus, may not be treated as genuine savings unless they have been held for the required period.

In a scenario where a buyer has saved $40,000 over two years through salary deposits into a high-interest savings account, that full amount would be accepted as genuine savings. If the same buyer received a $10,000 gift from a parent two weeks before applying for home loan pre-approval, that $10,000 would not be counted as genuine savings but may still be used as part of the deposit, depending on the lender's policy on gifted funds. Most lenders require a signed gift letter confirming that the funds are not a loan and do not need to be repaid.

How Deposit Size Affects Borrowing Capacity

The larger your deposit, the lower your loan amount and the lower your monthly repayments. This improves your serviceability and may increase the amount you can borrow if you need to. Lenders assess your borrowing capacity by calculating your net income after tax, deducting your existing commitments such as credit cards, personal loans, and other debts, and then determining how much you can afford to repay at the buffered interest rate.

If you have a smaller deposit and need to borrow more, your repayments will be higher, which may reduce the amount the lender is willing to approve. If you have a larger deposit and need to borrow less, your repayments will be lower, which may allow you to borrow more if you are purchasing a higher-value property or consolidating other debts. The relationship between deposit size and borrowing capacity is most visible when buyers are close to their maximum serviceability threshold.

Using Equity from an Existing Property

If you already own a property in Doncaster or elsewhere, you may be able to use the equity in that property as a deposit for your next purchase. Equity is the difference between the current market value of the property and the outstanding loan balance. Lenders will allow you to borrow against that equity up to a certain LVR, typically 80% without LMI or up to 90% with LMI.

Consider a buyer who owns a home valued at the current median for Doncaster, with an outstanding loan balance of $400,000. If the property is valued at $1,200,000, the usable equity at 80% LVR is $560,000, calculated as 80% of $1,200,000 minus the outstanding loan balance. That $560,000 can be used as a deposit for the next purchase, either by refinancing the existing loan or by taking out a second loan secured against the first property. This approach is common among buyers upgrading within the area or purchasing an investment property while retaining their existing home. For more detail on how this structure works, see our page on equity release.

Deposit Requirements for Investment Loans

Lenders generally require a larger deposit for investment properties than for owner-occupied properties. A deposit of at least 10% is typical, with 20% preferred to avoid LMI. Investment loans are assessed at a slightly higher interest rate than owner-occupied loans, and rental income is typically discounted by 20% to account for vacancy and maintenance costs when calculating serviceability.

In Doncaster, where a mix of established family homes and older-style units are available, investors often target properties with strong rental demand near Westfield Doncaster or along the Eastern Freeway corridor. A 20% deposit on an investment property not only removes LMI but also signals stronger financial position to the lender, which can improve your chances of approval and access to competitive rates. If you are considering an investment purchase, a loan health check on your current financing can help identify whether you have sufficient equity or serviceability to proceed.

Call one of our team or book an appointment at a time that works for you. We work with buyers across Doncaster and the eastern suburbs to structure deposits, access government schemes, and secure loan approval with clarity and support at every stage.

Frequently Asked Questions